The present invention provides novel 19-hydroxy-19-methyl-6a-carba-PGI1 amides which are useful for pharmacological purposes, e.g., anti-asthmatic indications.
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1. A prostacyclin-type compound of the formula ##STR3## wherein L3 is (1) --(CH2)n --, wherein n is one to 5, inclusive,
(2) --(CH2)p --CF2 --, wherein p is 2, 3, or 4, or (3) --CH2 --CH═CH--;
wherein M2 is ##STR4## wherein Q is oxo, α--H:β-H, α-OH:β--R4, or α--R4 :β--OH, wherein R4 is hydrogen or alkyl of one to 4 carbon atoms, inclusive, wherein R5 and R6 are hydrogen, alkyl of one to 4 carbon atoms, inclusive, or fluoro, being the same or different, with the proviso that one of R5 and R6 is fluoro only when the other is hydrogen or fluoro; wherein R7 and R8 are hydrogen, alkyl of one to 12 carbon atoms, inclusive, benzyl, or phenyl, being the same or different; wherein R9 is hydrogen or hydroxyl; and wherein X is (1) trans--CH═CH--, (2) cis--CH═CH--, (3) --C.tbd.C--, or (4) --CH2 CH2 --. |
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The present invention is a divisional application of U.S. Ser. No. 054,720, filed July 5, 1979, now U.S. Pat. No. 4,225,507.
The present invention provides novel prostacyclin analogs. Particularly, the present invention relates to prostacyclin analogs substituted at the C-19 position by hydroxy.
Particularly, the present invention relates to 19-hydroxy-19-methyl-6a-carba-PGI2 amides. The novel prostacyclin analogs are useful for pharmacological purposes, e.g., as anti-asthmatic agents. The preparation and use of these compounds is incorporated here by reference from U.S. Pat. No. 4,225,507.
For background on prostacyclin, see for example R. A. Johnson, et al., Prostaglandins 12, 915-928 (1976) and R. A. Johnson, et al., J. Am. Chem. Soc. 100, 7690-7704 (1978), and, as to pharmacological activity, the references cited therein. For analogs of prostacyclin, see, for example, J. Fried, et al., Proc. Natl. Acad. Sci. U.S.A. 74, 2199--2203, K. C. Nicolaou, et al., J.C.S. Chem. Comm. 1977, 331-332, N. A. Nelson, J. Am. Chem. Soc. 99, 7362-7363 (1977), and K. Kojima, et al., Tetra. Letters, 1978, (1977), and K. Kojima, et al., Tetra. Letters, 1978, 3743-3746. Regarding the nomenclature for analogs of PGI2, see R. A. Johnson, et al., Prostaglandins 15, 737-740 (1978).
The present invention particularly provides a prostacyclin-type compound of the formula ##STR1## wherein L3 is (1) --(CH2)n --, wherein n is one to 5, inclusive,
(2) --(CH2)p --CF2 --, wherein p is 2, 3, or 4, or
(3) --CH2 --CH═CH--;
wherein M2 is ##STR2## wherein Q is oxo, α--H:β--H, α--OH:β--R4, or α--R4 --:β--OH,
wherein R4 is hydrogen or alkyl of one to 4 carbon atoms, inclusive,
wherein R5 and R6 are hydrogen, alkyl of one to 4 carbon atoms, inclusive, or fluoro, being the same or different, with the proviso that one of R5 and R6 is fluoro only when the other is hydrogen or fluoro;
wherein R7 and R8 are hydrogen, alkyl of one to 12 carbon atoms, inclusive, benzyl, or phenyl, being the same or different;
wherein R9 is hydrogen or hydroxyl; and
wherein X is
(1) trans--CH═CH--,
(2) cis--CH═CH--,
(3) --C.tbd.C--, or
(4) --CH2 CH2 --.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 03 1980 | The Upjohn Company | (assignment on the face of the patent) | / |
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